Figure 3.

Dose area product ((A), DAP, Gy*cm²) and fluoroscopy time ((B), FT, min) across different years. <2009: n = 39, DAP 246 (9.2–888), FT 28 (15–99); 2009/2010: n = 75, DAP 74 (1.1–705), FT 22 (2.6–116); 2011/2012: n = 119, DAP 22 (0.8–789), FT 16 (0.8–104); 2013/2014: n = 177, DAP 18 (1.2–1167), FT 15 (1.9–103); 2015/2016: n = 212, DAP 41 (0.3–3181), FT 19 (0.3–184); 2017: n = 24, DAP 53 (2.5–222), FT 16 (4.0–63). *P ≤ 0.05, **P ≤ 0.01, ***P ≤ 0.001.